Title: Tensile behaviour of intralayer hybrid composites of carbon fibre and self-reinforced polypropylene
Authors: Swolfs, Yentl ×
Crauwels, Liesbet
Van Breda, Eline
Gorbatikh, Larissa
Hine, Peter
Ward, Ian
Verpoest, Ignace #
Issue Date: 2014
Publisher: Elsevier Science Ltd.
Series Title: Composites A, Applied Science and Manufacturing vol:59 pages:78-84
Abstract: To improve the toughness of carbon fibre composites, unidirectional carbon fibre prepregs were hybridised with highly oriented polypropylene (PP) tapes. The latter tapes are used in self-reinforced PP composites (SRPPs) with high toughness, but relatively low stiffness. The tensile behaviour of intralayer hybrids of oriented PP tapes and CFPP prepreg tapes was investigated by changing the layup and weave pattern, and by adding interleaved PP films. While stiffness and strength of these hybrids was decreased compared to CFPP, their ductility significantly increased by adding oriented PP tapes. The parallel behaviour of the two constituent materials was caused by delaminations, which developed after the CFPP failure and spreads over the entire sample. This behaviour was modelled and proven to be independent of layup and weave pattern. Interleaved films, which are often necessary for thermoformability, limited the delamination development by increasing the interlayer bonding and yielded a lower ultimate failure strain.
ISSN: 1359-835X
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Structural Composites and Alloys, Integrity and Nondestructive Testing
× corresponding author
# (joint) last author

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